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Finding the Fourth Proportional to 169,785.54, 254,686.80 and 64,612.68

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Solution

The fourth proportional to 169,785.54, 254,686.80 and 64,612.68 is: 96,922.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,785.54 : 254,686.80 = 64,612.68 : x
  2. Step 2: Convert to fraction form
    169,785.54/254,686.80 = 64,612.68/x
  3. Step 3: Cross multiply
    169,785.54x = 254,686.80 × 64,612.68
  4. Step 4: Simplify right side
    169,785.54x = 16,455,996,708.62
  5. Step 5: Solve for x
    x = 16,455,996,708.62/169,785.54
  6. Step 6: Final answer
    x = 96,922.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.